System and License Requirements

To install and run Tenable Core + Nessus, your application and system must meet the following requirements established for Nessus. For more information about Nessus requirements, see Nessus in the General Requirements User Guide.

Note: Tenable Support does not assist with issues related to your CentOS 7 operating system, even if you encounter them during installation or deployment.

Environment		Tenable Core File Format	More Information
Virtual Machine	VMware	.ova file	Deploy Tenable Core in VMware
Virtual Machine	Microsoft Hyper-V	.zip file	Deploy Tenable Core in Hyper-V
Cloud	Microsoft Azure	n/a	Deploy Tenable Core in Microsoft Azure
Hardware		.iso image	Install Tenable Core on Hardware

Note: While you could use the packages to run Tenable Core in other environments, Tenable does not provide documentation for those procedures.

License Requirements

To deploy Tenable Core + Nessus, your Nessus application must meet the requirements described in Nessus Licensing Requirements in the General Requirements User Guide.

Nessus Hardware Requirements

Enterprise networks can vary in performance, capacity, protocols, and overall activity. Resource requirements to consider for Nessus deployments include raw network speed, the size of the network being monitored, and the Nessus configuration.

Note: Tenable does not recommend deploying multiple applications on a single instance of Tenable Core. If you want to deploy several applications on Tenable Core, deploy a unique instance for each application.

Nessus Scanners and Nessus Professional Hardware Requirements

Scenario	Minimum Recommended Hardware
Scanning up to 50,000 hosts per scan	CPU: 4 2GHz cores Memory: 4 GB RAM (8 GB RAM recommended) Disk space: 30 GB, not including space used by the host operating system Note: Your usage (e.g., scan results, plugin updates, and logs) increases the amount of disk space needed over time.
Scanning more than 50,000 hosts per scan	CPU: 8 2GHz cores Memory: 8 GB RAM (16 GB RAM recommended) Disk space: 30 GB, not including space used by the host operating system Note: Your usage (e.g., scan results, plugin updates, and logs) increases the amount of disk space needed over time.

Scenario

Minimum Recommended Hardware

Scanning up to 50,000 hosts per scan

CPU: 4 2GHz cores

Memory: 4 GB RAM (8 GB RAM recommended)

Disk space: 30 GB, not including space used by the host operating system

Note: Your usage (e.g., scan results, plugin updates, and logs) increases the amount of disk space needed over time.

Scanning more than 50,000 hosts per scan

CPU: 8 2GHz cores

Memory: 8 GB RAM (16 GB RAM recommended)

Disk space: 30 GB, not including space used by the host operating system

Note: Your usage (e.g., scan results, plugin updates, and logs) increases the amount of disk space needed over time.

Nessus Manager Hardware Requirements

Scenario	Minimum Recommended Hardware
Nessus Manager with 0-10,000 agents	CPU: 4 2GHz cores Memory: 16 GB RAM Disk space: 30 GB, not including space used by the host operating system. Note: Scan results and plugin updates require more disk space over time.
Nessus Manager with 10,001-20,000 agents	CPU: 8 2GHz cores Memory: 64 GB RAM Disk space: 30 GB, not including space used by the host operating system. Note: Scan results and plugin updates require more disk space over time. Note: Engage with your Tenable representative for large deployments.

Scenario

Minimum Recommended Hardware

Nessus Manager with 0-10,000 agents

CPU: 4 2GHz cores

Memory: 16 GB RAM

Disk space: 30 GB, not including space used by the host operating system.

Note: Scan results and plugin updates require more disk space over time.

Nessus Manager with 10,001-20,000 agents

CPU: 8 2GHz cores

Memory: 64 GB RAM

Disk space: 30 GB, not including space used by the host operating system.

Note: Scan results and plugin updates require more disk space over time.

Note: Engage with your Tenable representative for large deployments.

Nessus Supported Browsers

Nessus supports the following browsers:

Google Chrome (76+)
Apple Safari (10+)
Mozilla Firefox (50+)
Microsoft Edge (102+)